Articles & Case Studies

Densoclad Protection for Frankley Water Treatment Pipe Joints

Posted: Friday 6th March 2015

Engineering solutions provider Costain is nearing completion of a £20 million contract to update the Severn Trent Frankley Water Treatment Works. This is part of several projects being carried out by Severn Trent Water to maintain the quality of its customersí water supply. The major part of the Costain Group project was the new contact tank, which has the capacity of several Olympic-sized swimming pools. The treated water is held here before being pumped to some of Severn Trentís 1.4 million customers in and around Birmingham.

A key protection role was supplied by Winn & Coales (Denso) Ltdís Densoclad system and profiling mastic, which has been applied to bolted flanged joints on all 1.1 and 1.6 metre diameter water mains and associated pipework related to the new contact tank.

Densoclad is available as a medium to heavy-duty tape, designed for anti-corrosion protection of medium and large diameter pipes, welded joints, bends and fittings and is applied over Denso primer. Where required profiling mastic is also first applied to obtain a smooth surface. Densocladís extremely tough PVC backing combined with polymer bitumen adhesive ensures complete protection and exceptional resistance to damage by impact or aggressive ground conditions.